This Privacy Policy explains how we handle personal information in all iOS applications ("the Apps") published on this site.
1. Information We Collect
Our Apps respect your privacy and only handle the minimum necessary information. Data handling varies depending on the app's features:
Apps with Local Storage Only
Apps that store data only on your device do not collect any personal information. All data is stored solely on your device and is never transmitted externally.
Apps with iCloud Sync
Apps with iCloud sync functionality synchronize user-created data through Apple's iCloud service.
- Data synced: Records created within the app (habit records, etc.)
- Sync destination: iCloud account linked to user's Apple ID
- Data management: Governed by Apple's Privacy Policy
iCloud sync can be turned off at any time in the app or iOS Settings. For details, please refer to Apple Privacy Policy.
Apps with Cloud Sync (Firebase)
Apps with family data sharing features use Google Firebase services to synchronize data.
- Data collected:
- Anonymous authentication identifier (does not include information that allows the developer to identify individual users)
- Records created within the app (income/expense records, category information, etc.)
- Data storage: Google Cloud (Firebase Firestore)
- Data sharing: Shared only with family members/partners explicitly invited by the user
Firebase authentication uses anonymous authentication and does not collect personal information such as email addresses or passwords. For details, please refer to Firebase Privacy Policy.
Apps with Ads (Using Google AdMob)
Apps with ads use Google AdMob for ad delivery. AdMob may collect the following information:
- IP address
- Device identifiers
- Approximate location
- App usage data
- Diagnostic data
For Google AdMob's privacy policy, please refer to Google Privacy Policy.
Please check each app's support page for specific features.
2. Purpose of Information Use
- Providing basic app functionality
- Data synchronization across multiple devices (applicable apps only)
- Data sharing with family/partners (applicable apps only)
- Ad delivery (applicable apps only)
- App improvement and optimization
3. Sharing Information with Third Parties
User information is shared with third parties only in the following cases:
- iCloud sync: Apple Inc. (for providing iCloud services)
- Cloud sync: Google LLC (for providing Firebase services)
- Ad delivery: Google LLC (for AdMob ad delivery)
- When the user explicitly consents (such as sharing with family)
We do not share information with third parties for any other purposes.
4. Data Security
Our Apps use standard security features provided by iOS and each cloud service to protect data.
- Local data: Protected by device security features
- iCloud sync: Protected by Apple's security standards
- Firebase sync: Protected by Google's security standards
5. Children's Privacy
We take children's privacy seriously. Apps designed for young children collect no personal information and operate completely offline.
6. User Rights
Users have the following rights:
- Delete all local data on the device by uninstalling the app
- Turn off iCloud sync through iOS Settings
- Limit ad personalization through iOS Settings
- For cloud sync apps, delete saved data and your account at any time from the settings menu within the app
- Contact us through the inquiry form with questions about your data
7. Data Retention Period
- Local data: Retained until the app is uninstalled
- iCloud data: Retained until the user deletes it from iCloud
- Firebase data: Retained until the user requests account deletion
8. Changes to Privacy Policy
This Privacy Policy may be updated as needed. We will notify you of significant changes on this page.
9. Contact Us
If you have any questions or requests regarding privacy, please contact us through our inquiry form.
Last updated: February 4, 2026